Just recently, video output on my desktop computer has failed. This occurred when I was playing a computer game - the DVI output went blue after going through some strange shifts. I was on Teamspeak at the time my display failed and I was able to hear all my friends without issue, so no other components appeared to be affected. I rebooted the computer, both in normal and safe mode to determine whether this was a driver issue and switched to my HDMI cable but by then the display had failed completely. I was able to get to the BIOS and a few seconds after login before total failure.
I know this cannot be a monitor issue because I have a Dreamcast connected to my monitor via VGA, and that was able to operate without issue.
Before that, I was experiencing a strange problem. Every now and then, my display would shut off, and within several seconds, return. This was always accompanied by a single clicking sound coming from the computer.
I am suspecting this is a PSU issue and fear that my video card is dead for good. Right now I am thinking of ordering a temporary replacement card (like a cheap 5450/6450) before I think of a long term solution. I need to get this operational ASAP because this desktop is my computer at my university.